Window construction.



W. J. STILLING.

WINDOW CONSTRUCTION.

APPLICATION FILED JAN. 30. 1911.

Patented Feb. 11, 1919.

IIVVENTOR William (T Sfz'lliry A TTOHNEKS hit 'VVELIAM J. STILLING, FELMHURST, NEW YUJBBK.

WINDOW CONSTRUCTION.

nannies.

Specification of Letters Patent.

Patented Feb. 11, 11919.

Application filed January 30, 1917. Serial No. 145,345.

To all whom it may concern:

Be it known that 1, WILLIAM J. S'rmLrNc, a citizen of the United States,and a resident of Elmhurst, in the county of Queens and State of NewYork, have invented certain new and useful Improvements in WindowConstructions, of which the following is a specification.

My invention relates to window constructions and more particularly tothat class of windows having a plurality of window sashes mountedtherein in a horizontal row and which are adapted to swing horizontallywhile the planes of the sashes remain vertical during the swingingmovement.

One of the objects of my invention is the production of a sash of theabove character which shall be simple in construction and easy tooperate and in which both sides of the window pane may be cleaned fromthe inside of the window and while the sash is in closed position, thuspreventing drafts during the cleaning operation.

A further object of my invention is the production of a window havingsashes of the character above described and provided with interlockingmeans attheir meeting edges so as to obviate the necessity of usingmuntins or other separating strips in the window.

A further object of my invention is the production of a window havingmeans adapted to retain the sashes in closed position and enable them tosuccessfully resist ordinary pressure such as wind pressure which in theabsence of said retaining means or of a lock might blow open the sashes.

Tothe above ends my invention consists in the novel construction ofwindow and sashes hereinafter more particularly described and thenspecifiedin the claims.

Tn the accompanying drawing:

Figure 1 is a horizontal cross-section taken through the window andsashes showin one of the sashes partly open.

ig. 2 is an enlarged horizontal cross-section taken through the windowand sashes showing both sashes in closed and interlocked position.

Fig. 3 is a vertical cross-section talren throu h the window and one ofthe sashes.

Re erring more particularly to the several figures of the drawing:

1, 2 indicate the walls of a building in which are embedded the angleiron piecesfl,

4. To these angle iron pieces are attached respectively in any desirablemanner the upright side bars or frames of the Window as indicated at 5,6' to which are fastened re spectively the inverted U-shaped strip 7 andthe U-shaped strip 8 the function of which will be presently described.

The sashes 9, 10 of which there may be any desired number, two beingshown in the present case for the sake of illustration only, arerespectively provided with window panes 11 and 12 held in positionbetween the molding and the front face of the sash, as is illustrated,by putty or any other suitable composition. The particular manner ofholding the window panes in position and the particular construction orform of molding used, however, forms no part of my invention. Each ofthe sashes is provided on one of its sides with a il -shaped strip asindicated at 13 and 14, which U-shaped strip may be made an integralpart of the sash itself or may be a separate piece united in any mannerwith the sash. The opposite sides of the sashes 9 and 10 have unitedthereto the inverted til-shaped pieces 15 and 16 opening in the oppositedirection to the pieces 13, 14.

Referring now more particularly to Fig. 3 in which one of the sashesonly is shown, a description of the device will be confined for thepresent to the window and to that sash only, it being understood thatboth the sashes are identical in construction.

The sash is centrally and pivotally mounted on an upper pivot 17 and ona lower pivot 18. Pivot 17 is suitably fastened within a flanged channelstrip 19 eatending horizontally the length of the window and the lowerpivot 18 is secured in any desired manner to the lower frame 20 of thewindow. 11 tl-shaped strip 21 extending also horizontally the length ofthe window fits within the flanged channel strip 19 and is capable of atelescoping movement therein. The upper pivot 17 protrudes downwardlythrough an opening in the U- shaped strip 21 and through an opening inthe upper wall of the top portion 22 of the sash. The lower pivotextends upwardly through an opening in the lower wall of the bottomportion 23 of the sash. A spring 2 1 encircling the upper pivot 17 bearsagainst the U-shaped strip 21 causing said strip to exert a downwardpressure against the sash.

It will be noticed that the U-shaped strip 21 has an inwardly curvedbase conforming in shape to the outwardly curved surface of the topportion 22 of the sash and that the lower frame 20 of the window onwhich the sash rests has an outwardly curved upper surface conforming inshape to the inwardly curved lower wall of the bottom portion 23 of thesash. It is therefore obvious that to open the sash a more or less firmpull is required in order to overcome the resistance of the spring 24and also to overcome the resistance. due to the cam action which takesplace and which is the result of the particular shape of the upper andlower portions of the sash and also-of those parts of the windowcooperating therewith as has just been described. It is apparent forinstance, that when the sash is opened a distance of 90, or in otherwords when it is opened to a position at right angles to that shown inFig. 3, the lowest parts of the bottom portion 23 of the sash ride upand on to the barrier 40 of the lower frame 20 of the window and thatthe U-shaped strip 21 is in consequence forcibly raised an appreciabledistance against the action of the spring 24. Because of theconstruction just described it is apparent that the sash has a tendencyto remain closed or in that position shown in Fig. 3 and that a greaterforce is necessary than ordinary wind pressure to open the sash. Thisform of sash is very desirable for high windows or windows which are noteasily accessible from the outside as no special lock, hook or latch isnecessary to keep the sash normally closed.

From the foregoing description and from an inspection of Fig. 1, it ismanifest that one or both of the sashes may, if desired, be swung aroundalmost a complete half revolution or almost 180, so that when so swungthe strip 16 bears against the strip 15 and the strip 14 against thestrip 8 as shownin dotted lines in Fig. 1 and the outside of the windowpane may be conveniently and easily cleaned from the inside of thewindow while the sash is in closed position. It is also obvious thatbecause of the U-shaped and inverted U-shaped strips fastened to thesides of the sashes and to the side bars or frames of the window andeach adapted to interlock with the adjacent strip, no muntins or otherseparating pieces are necessary for the sashes and if a l the sashes, ofWhlCll there may be any number as has been explained, are swung open toan angle of 90 from their closed position, a maximum supply of light andair may be obtained. lhese interlocking means as described are extremelysimple in construction and the sashes wit these strips may be made withso fine a deeeaace gree of accuracy as to render them practicallyair-tight.

It will be understood that my invention is not limited to the exactdetails of construction shown and described but various modificationsmight be resorted to without departing from the spirit of the inventionas set forth in the appended claims.

\Vhat I claim as my invention is 1. A window having a plurality ofcentrally and vertically pivoted horizontally swinging sashes eachadapted to interlock along its vertical edge with its adjacent sash whenin closed position and means tending to retain said sashes ininterlocked position.

2. A window provided with side frames and centrally and verticallypivoted sashes arranged side by side in horizontal alineclosed position,said sashes being adapted to be swung around horizontally so that thefront and rear thereof will occu y substantially reversed positions,interloc ing means comprising a vertical U-shaped strip attached toeither side of said sashes and adapted to interlock with theinterlocking means or vertical U-shaped strip of the adjacent sash, saidside frames being also provided with interlocking means comprising avertical-U-shaped strip adapted to interlock with the interlocking meansof the sashes adjacent said frames and means tendin to retain saidsashes in closed and interloied position.

3. A window havin a channel strip em bedded in the wall at t e topthereof and extending horizontally the length of the window, a U-shapedstrip fitting within said channel strip and capable of vertical movementtherein, a plurality of horizontally swinging sashes arranged side byside in alinement and mounted on pivots fastened in said channel stripand extending through said U-shapcd strip said sashes being providedwith means along their vertical edges adapted to interlock with eachother when Said sashes are in closed position, a lower frame for saidwindow having a curved surface on which said sashes are adapted to ridewhen being swun on their pivots and springs carried by sai pivots andengaging said U-shaped strip to cause the same to exert a downwardpressure against the tops of said-sashes.

Signed at New York, in the county of New York and State of New York,this 27th day of January, A. D. 1917.

WILLIAM J. S'lllLlLllNG.

Witnesses:

F. B. TOWNSEND, IRENE LEFKOWITZ.

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ment and lying in the same plane when in lllh

